Most will provide free advise but you may want to pay them to have someone to point to if someone cries foul.

When she moved out, her damage deposit was refunded & she got another letter of recommendation from her landlord to take with her.Male cats are the worst for odors.

The water should be water tight, the p trap stops the odor of sewer gasses, and it all goes down the drain to the same place.  

Can you specifically mention that "while we can't accept a pet deposit, your security deposit will cover pet damage and any cleaning costs necessary to remove any pet odors"?

The biggest concern for me would be odor.

(the music and the exhaust odor if they cook need to not effect the residents).If the Bar is quieter the soundproofing job will be easier.Good Luck!

If they push back, tell them they can stay only if they remove the three people and two cats, make repairs, clean out any odors, pass an inspection, and pay your fine of $XX per violation (5 x $XX).Get some books and learn how to handle problems before they come up.

On the other hand at one of my other houses that were available for showing by "lockbox" the PM company I had at the time reported that several interested parties commented on an unsavory odor in the house. 

Both of the residents had mental challenges, and, there was a very odd, but strong odor notable from outside the house.

11.Odors.